Accurately meshing a RevSurface constructed from polyline

Rhino Developer
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1

Hi, I am trying to convert a RevSurface into a mesh. The problem is that the result does not have well-defined edges, unlike what the Rhino Mesh command is capable of.
See the below image. Middle is the RevSurface converted to Brep. To the left is that Brep meshed with Mesh.CreateFromBrep(), and to the right is that Brep meshed with Rhino’s Mesh command. See how dense the mesh is and where there are edges the mesh seems to round over them, not use them as boundaries to stop at. I’d like to replicate the mesh on the right.

image
image1443×1008 224 KB

Here is some code that produces the problem seen on left:

var pts = new List<Point3d>{
	new Point3d(3, 0, 0),
	new Point3d(5, 0, 0),
	new Point3d(5, 0, 2.5),
};

var profile = new Polyline(pts);

var revolution = RevSurface.Create(profile, new Line(Point3d.Origin, Vector3d.ZAxis));
Brep revolutionBrep = revolution.ToBrep();

var revolutionMeshes = Mesh.CreateFromBrep(revolutionBrep, new MeshingParameters());
2

The problem was that the Brep consisted of a single surface despite looking like multiple and this surface needed to be split. Using Brep.Faces.SplitKinkyFaces() is a solution and I can confirm it works. (documentation)

I imagine there is also an alternative to create separate RevSurfaces from each line segment and then join them together into a single Brep. (splitting the profile rather than the surface)